If a Realtor helped you buy your home, contact them. You may also be able to look at your tax records to see what company or person sold it first and contact them from the information you find. Hope this helps!
I had a similar situation a few years ago but I ended up just having to use a technician from this site (http://brothersplumbing.ca/about-plumbing-contractors-toronto)/. Good luck friend.
Click this link for electricians from one source (service majic):
This link has a list of plumbers:
I hope this information is helpful to you.
Search the Charleston SC MLS: